Surgical system base



FIG. 1 is a perspective view of my surgical system base.

FIG. 2 is a front view of my surgical system base.

FIG. 3 is a back view of my surgical system base.

FIG. 4 is a left side view of my surgical system base.

FIG. 5 is a right side view of my surgical system base; and,

FIG. 6 is a top view of my surgical system base.

The broken lines in each figure illustrate environmental features that form no part of the claimed design. 

CLAIM The ornamental design for a surgical system base, as shown and described. 